144 Mr. P. S. Abraham on some Genera 



each side, form a kind of spreading fascicle. They are all 

 more or less ramose, dividing dichotomously. The anus, 

 situated between the posterior branches, is tubular, broad and 

 short. Branchia? and anus are contained in a common pallial 

 chamber. The mouth is directed rather forwards, and is 

 bounded by thick exsertible lips ; on each side is a pit, into 

 which a soft appendage appears to be retractile. The foot is 

 linear, rather enlarged and rounded in front, where it is trans- 

 versely grooved, somewhat fleshy, and inwardly lobulated. 

 The colour is a miiform dark umber-brown, with sparing and 

 indistinct, dusky, rounded and ocellated spots, some of them 

 very sliglitly raised, on the sides, and with a few on the 

 back. 



Dimensions (in spirit) — length 51 millims., breadth IG, 

 height 16, length of tail 11. 

 Hab. West Australia. 



The short tail and the nodular postbrauchial protuberance 

 differentiate C. ohlongum from all the other species except 

 C. hrevicaudatum. From the latter it principally differs (with- 

 out regarding the colour) in the form of the dorsal tentacles, 

 in the comparatively depressed branchial region of the back, 

 and in the small interval between the postbrauchial protu- 

 berance and the origin of the tail. 



Teevelyana, Kelaart. 



Body limaciform, rather swollen or raised in the central 

 region. Mantle obsolete. No appendages. Dorsal tentacles 

 laminate and retractile. Branchiae pinnate, non-retractile, 

 placed around the anus almost on the centre of the back. 

 AJouth Avithout oral tentacles or veil, and without collar oi" 

 jaws. Odontophore broad, bearing simple spines. 



The genus was instituted by Kelaart in 1859 for the species 

 T. ceylonica^ described by him*. Another species, T. hicolor^ 

 was added by Alder and Haucockf, by whom a better defini- 

 tion of the genus was given. Since then T. morosa has been 

 figured by Bergh|. ^^ Doris limacina,^^ Quoy & Gaim.§, and 

 "Doris impudica,^^ Riipp. & Leuck. ||, may be referred to this 

 genus. 



• Ann. & Mag. Nat. Hist. ser. 3, vol. i. p. 257 ;. and Journ. Asiatic 

 Society. 



t Transactions of the Zoological Society, vol. v. p. 132, pi. xxix. f. 11 

 & 12. 



X Semper's ' Reisen im Archipel der Philippinen,' Theil 2, Band ii. 

 Heft 5, tab. 25. f. 9. 



§ 'Voyage de 1' Astrolabe,' vol. ii. p. 252, pi. xvi. f. 8 & 9. 



II Atlas von Riippell, 'Neiie wirbellose Thiere des rothen Meers,' p. 3;i, 

 T. X. f. 2. 



